Aetna Denied Physical Therapy: How to Appeal a PT Claim Denial

Physical therapy is often the cornerstone of recovery from injury, surgery, or chronic conditions — but Aetna frequently denies PT claims based on visit limits, lack of documented progress, or classifications of treatment as "maintenance" rather than "restorative." If Aetna has denied your physical therapy, here's what you need to know to appeal.

Why Aetna Denies Physical Therapy Claims

Aetna's PT denials are governed by its Clinical Policy Bulletin on Physical Therapy (CPB 0325 and related policies), which sets out what qualifies as medically necessary physical therapy. Common denial reasons include:

• Visit limit reached: Many Aetna plans cap physical therapy at a set number of visits per plan year. Once you exceed the limit, additional sessions are denied unless you can demonstrate exceptional medical necessity.
• Maintenance therapy determination: Aetna's CPBs distinguish between restorative therapy (expected to improve function) and maintenance therapy (designed to prevent decline). Aetna will generally not cover maintenance PT under most plan designs. If your therapist's notes suggest you have plateaued, Aetna will classify ongoing treatment as maintenance.
• Inadequate documentation of progress: Aetna requires that PT notes quantify functional improvement using objective measurements. Vague notes stating "patient continues to improve" without specific metrics (range of motion, strength testing, functional status scores) will trigger a denial.
• No Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization for extended treatment: Some Aetna plans require authorization for PT beyond an initial number of visits. Failure to renew authorization results in automatic denials.
• Concurrent therapy conflict: If you are receiving occupational therapy or chiropractic care for the same condition simultaneously, Aetna may deny PT as duplicative.

Aetna's Physical Therapy Appeal Process

Step 1 — Review the Denial and Identify the CPB Look up Aetna's Clinical Policy Bulletin 0325 (Physical Therapy) at aetna.com/cpb. Read the specific criteria that Aetna applied. Your appeal must address those criteria directly.

Step 2 — File an Internal Appeal Within 180 Days

• Online: member.aetna.com
• Mail: Aetna Appeals, P.O. Box 14463, Lexington, KY 40512
• Phone: 1-800-537-9384

Step 3 — Build a Strong PT Appeal Request from your physical therapist:

• Objective functional assessments (e.g., 6-Minute Walk Test, Timed Up-and-Go, Oswestry Disability Index, LEFS score)
• Documentation of measurable progress since the start of treatment
• A treatment plan with specific, time-bound therapeutic goals
• A clinical narrative explaining why additional sessions are medically necessary and will produce further functional gains

Include a letter from your referring physician or physiatrist supporting continued PT.

Step 4 — Challenge the Maintenance Therapy Ruling If Aetna denied your PT as "maintenance," your appeal should:

• Provide evidence of continued measurable functional progress
• Explain why your condition requires active intervention to prevent significant functional decline
• Reference clinical guidelines (e.g., APTA, specialty society protocols) that support the proposed treatment duration

Step 5 — External Independent Review: Complete Guide" class="auto-link">External Review and Escalation

• ERISA plans: DOL EBSA — 1-866-444-3272
• State-regulated plans: State insurance commissioner
  • California: DMHC — 1-888-466-2219 (strong consumer protections)
  • New York: DFS — 1-800-342-3736
  • Texas: TDI — 1-800-252-3439

Mental Health Parity Considerations

If your physical therapy relates to a mental health or behavioral health condition, note that the MHPAEA may constrain how Aetna applies therapy visit limits relative to other medical conditions. This may provide an additional avenue for appeal.

Fight Back With ClaimBack

Aetna PT denials are reversible — especially when the right functional documentation is presented. ClaimBack helps you build the evidence-based appeal that Aetna's reviewers need.

Start your free appeal at ClaimBack

Related Reading

• What Is Medical Necessity?
• How to Write an Insurance Appeal Letter
• Internal vs. External Insurance Appeals